ignition lock TOYOTA TERCEL 1996 Service Owner's Manual

DI4MA-01
DI-154
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TERCEL (RM440U)
PROBLEM SYMPTOMS TABLE
Proceed with troubleshooting of each circuit in the table below.
SymptomSuspect AreaSee page

With the ignition switch at ACC or ON, the SRS warning light
sometimes lights up after approx. 6 seconds have elapsed.

SRS warning light is always lit up even when ignition switch is in
the LOCK position.

SRS warning light system malfunction
(Always lit up when ignition switch is in LOCK position.)DI-180

With the ignition switch at ACC or ON, the SRS warning light
does not light up.
SRS warning light system malfunction
(Does not light up, when ignition switch is turned to ACC
or ON.)
DI-182

DTC not displayed.

SRS warning light is always lit up a DTC check procedure.

DTC displayed without Tc and E1 terminal connection.

Tc terminal circuitDI-185

AB0069
W01933
AB0118
R13006AB0069
AB0118
W02042
H00006
Airbag Sensor
Assembly
Spiral
Cable P Squib
D SquibP+
P-
D+ D-ACCON
or
Code 11
DLC1
Tc
E1
DI-158
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TERCEL (RM440U)
4 Check airbag sensor assembly.
PREPARATION:
(a) Connect connector to airbag sensor assembly.
(b) Using a service wire, connect D+ and D- on spiral cable
side of connector between spiral cable and steering
wheel pad.
(c) Using a service wire, connect P+ and P- on airbag sensor
assembly side of connector between airbag sensor as-
sembly and front passenger airbag assembly.
(d) Connect negative (-) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory.
(See page DI-148)
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC 1.
SST 09843-18020
(f) Check DTC
OK:
DTC 11 is not output.
HINT:
Codes other than code 11 may be output at this time, but they
are not relevant to this check.
NG Replace airbag sensor assembly.
OK

R05896
AB0118
R13006AB0119
W02042
H00007
Spiral
Cable P Squib
D Squib
ACCON
or
DLC1Code 11
E1TcAirbag Sensor
Assembly
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-159
1996 TERCEL (RM440U)
5 Check D squib.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (-) terminal cable from the battery,
and wait at least 90 seconds.
(c) Connect steering wheel pad connector.
(d) Connect negative (-) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory.
(See page DI-148)
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC 1.
SST 09843-18020
(f) Check DTC.
OK:
DTC 11 is not output.
HINT:
Codes other than code 11 may be output at this time, but they
are not relevant to this check.
NG Replace steering wheel pad.
OK

R05897
AB0118
R13006AB0119
W02042H00008
Airbag Sensor
Assembly
Spiral
Cable P Squib
D Squib
ACCON
or
DLC1
E1TcCode 11
DI-160
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TERCEL (RM440U)
6 Check P squib.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (-) terminal cable from the battery,
and wait at least 90 seconds.
(c) Connect front passenger airbag assembly connector.
(d) Connect negative (-) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory.
(See page DI-148)
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC 1.
SST 09843-18020
(f) Check DTC.
OK:
DTC 11 is not output.
HINT:
Codes other than code 11 may be output at this time, but they
are not relevant to this check.
NG Replace front passenger airbag assembly.
OK
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check. If the malfunctioning part can not be
detected by the simulation method, replace all SRS components including the wire harness.

AB0069
AB0069
AB0118
R13006AB0119W01933
W02043
H00012
Airbag Sensor
Assembly P+
P-
Spiral
Cable P Squib
D Squib
D-D+ACC ON
or
DLC1Code 12
E1Tc
DI-164
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TERCEL (RM440U)
4 Check airbag sensor assembly.
PREPARATION:
(a) Connect connector to airbag sensor assembly.
(b) Using a service wire, connect D
+ and D- on spiral cable
side of connector between spiral cable and steering
wheel pad.
(c) Using a service wire, connect P
+ and P- on airbag sensor
assembly side of connector between airbag sensor as-
sembly and front passenger airbag assembly.
(d) Connect negative (-) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory.
(See page DI-148)
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC1.
SST 09843-18020
(f) Check DTC.
OK:
DTC 12 is not output.
HINT:
Codes other than code 12 may be output at this time, but they
are not relevant to this check.
NG Replace airbag sensor assembly.
OK

R13006 R05896
AB0118 AB0019W02043H00013
Airbag Sensor
Assembly
P Squib
D Squib
Spiral
Cable
ACCON
or
DLC1Code 12
E1 Tc
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-165
1996 TERCEL (RM440U)
5 Check D squib.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (-) terminal cable from the battery,
and wait at least 90 seconds.
(c) Connect steering wheel pad connector.
(d) Connect negative (-) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory.
(See page DI-148)
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC1.
SST 09843-18020
(f) Check DTC.
OK:
DTC 12 is not output.
HINT:
Codes other than code 12 may be output at this time, but they
are not relevant to this check.
NG Replace steering wheel pad.
OK

R05897
R13006 AB0118AB0119
W02043H00014
Airbag Sensor
Assembly
P Squib
D SquibSpiral
Cable
ACCON
or
DLC1Code 12
E1
Tc
DI-166
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TERCEL (RM440U)
6 Check P squib.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (-) terminal cable from the battery,
and wait at least 90 seconds.
(c) Connect front passenger airbag assembly connector.
(d) Connect negative (-) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory.
(See page DI-148)
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC1.
SST 09843-18020
(f) Check DTC.
OK:
DTC 12 is not output.
HINT:
Codes other than code 12 may be output at this time, but they
are not relevant to this check.
NG Replace front passenger airbag assembly.
OK
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check.

R05899
AB0119
R14288
H00015
Airbag Sensor
Assembly
P Squib
D SquibSpiral
Cable
D+
(+) (-)ON
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-167
1996 TERCEL (RM440U)
7 Check spiral cable.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect connector between airbag sensor assembly
and spiral cable.
(c) Turn ignition switch ON.
CHECK:
Measure voltage at D+ on spiral cable side of connector be-
tween spiral cable and steering wheel pad and body ground.
OK:
Voltage: 0 V
NG Repair or replace spiral cable.
OK
Repair or replace harness or connector between airbag sensor assembly and spiral cable.

R05895
AB0118
R13006AB0069
AB0119
W02044H00017
Airbag Sensor
Assembly
Spiral
Cable
D SquibP Squib
D+
D-ACCON
or
DLC1
E1 TcCode 14
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-169
1996 TERCEL (RM440U)
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect connector to airbag sensor assembly.
(b) Using a service wire, connect D
+ and D- on spiral cable
side of connector between spiral cable and steering
wheel pad.
(c) Connect negative (-) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON and wait at least 20 se-
conds.
(b) Clear malfunction code stored on memory (See page
DI-148).
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC 1.
SST 09843-18020
(f) Check DTC.
OK:
DTC 14 is not output.
HINT:
Codes other than code 14 may be output at this time, but they
are not relevant to this check.
NG Replace airbag sensor assembly.
OK

R05896
AB0118
R13006AB0119
W02044H00018
Airbag Sensor
Assembly
Spiral
Cable P Squib
D Squib
ACCON
or
DLC1
E1
TcCode 14
DI-170
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TERCEL (RM440U)
4 Check D squib.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (-) terminal cable from the battery,
and wait at least 90 seconds.
(c) Connect steering wheel pad connector.
(d) Connect negative (-) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory (See page
DI-148).
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC 1.
SST 09843-18020
(f) Check DTC.
OK:
DTC 14 is not output.
HINT:
Codes other than code 14 may be output at this time, but they
are not relevant to this check.
NG Replace steering wheel pad.
OK
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check.